(I walk in and stand in a line. I’ve been there for all of five seconds before a man runs in, elbows his way to the front of the queue and slams a burger in front of the cashier. She is a young teenager.)

Customer: "You f***ing b****! How many f***ing times do I have to tell you no f***ing sauce?!"

Cashier:*smiling all the way through the exchange* "I’m sorry sir, what seems to be the problem?"

Customer: "You f***ing up my burger! I want a refund now!"

Cashier: "Certainly, sir! Do you remember what time you came in at?"

Customer: "How am I supposed to f***ing know? You’re the one who took the d*** order!"

Cashier: "I’ll have a look, sir, if you give me one moment."

(She taps her screen, all the while being yelled abuse at by the customer. All the other customers have since cleared out, except for me. I motion to the cashier that I’ve called the police.)

Cashier: "My apologies sir, give me one moment. Would you like me to give you a fresh order?"

Customer: "You’d better, you b****!”

Cashier:*hands customer his refunded money* "Okay, it’ll be three minutes to cook your order so if you’d like to sit down-"

(At this point the man throws the money he’s just been given at the cashier and screams abuse at her. She picks up the change and counts it.)

Cashier: "Your change comes up to £3.71, which is just enough for another meal. Which one would you like?"

Customer: "Would you just hurry up and give me my d*** food! Are you f***ing simple or something?”

Cashier: "No, just distracting you ’till the police get here."

(Two uniformed police officers walk in and take the man away, who is still cursing. The manager walks out of a side room which he has been hiding in–he’s about thirty and male–and offers her a promotion on the spot. She promptly tells him that she’d rather die than be spineless like him and quits. She then pockets the change, grabs most of the food on display and leaves, but not before thanking me and sharing half the food with me.)